Ah, so why is screening for infection of any use in controlling an epidemic? I'm not an epidemiologist, so I'm not qualified to explain, but they seem to believe it's important. In
The New York Times, we have a description of why a doctor feels it's urgent that she be provided with a test for her patient.
'As Deaths Mount, China Tries to Speed Up Coronavirus Testing'
Dr. Zhang Xiaochun, who works in a hospital in Wuhan, was in dismay. Her patient had been running a fever for nine days, and a CT scan showed signs of pneumonia — symptoms of the new coronavirus sweeping across the central Chinese city.
But a test to confirm the diagnosis would take at least two days. To Dr. Zhang, that meant a delay in isolating her patient — and getting potentially lifesaving treatment.
This past week, Dr. Zhang started a social media campaign with an urgent call to simplify screening for the new coronavirus. It was an unusually public effort that quickly found support among public health experts and the government as China grapples with one of the deadliest epidemics in its recent history.
“The purpose is to isolate and treat quickly,” Dr. Zhang said in a telephone interview. “It amounts to extraordinary measures taken in extraordinary times.”
The new coronavirus has sickened more than 40,000 people and killed more than 900 people in China. Hardest hit are the residents of the outbreak’s epicenter, Wuhan, and the surrounding province of Hubei. Hospitals are overwhelmed and medical supplies are scarce, leading to delays in treatment for thousands of people.
A major bottleneck has been a shortage of nucleic acid testing kits used to confirm the presence of the coronavirus. So Dr. Zhang proposed that doctors could first use CT scans to detect pneumonia and quickly isolate and treat patients who have it.
If infection spreads unchecked (by failure to implement measures like
containment areas) the health infrastructure will be overwhelmed, and more people will die. If is at least slowed down so that the medical community can mostly handle the load, lives will be saved. So it seems to me, anyway.